From 0043d48aafabc3e9a8e6874c36a10e5bb95a4c59 Mon Sep 17 00:00:00 2001
From: Irit Katriel <iritkatriel@yahoo.com>
Date: Tue, 5 Jul 2022 23:32:54 +0100
Subject: [PATCH] gh-94438: in frameobject's mark_stacks, add explicit case for
 CACHE opcodes which leaves the stack unchanged

---
 Objects/frameobject.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index 34a6c46c6b57f2..ccdf7de9906132 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -220,6 +220,11 @@ mark_stacks(PyCodeObject *code_obj, int len)
             }
             opcode = _Py_OPCODE(code[i]);
             switch (opcode) {
+                case CACHE:
+                {
+                    stacks[i+1] = stacks[i];
+                    break;
+                }
                 case JUMP_IF_FALSE_OR_POP:
                 case JUMP_IF_TRUE_OR_POP:
                 case POP_JUMP_FORWARD_IF_FALSE: